Hello!This days I was looking at the SAM3X datasheet and notice one WEIRD thing: It said that arduino has 15 Analog ready pins, but when I read the Arduino Due page, there was only 12 listed as Analog...

This is what intrigued me to find a solution to enable the others 3 pins, since my project needed 13 (yes, one more than the available).

The pins, not marked as analog that Could "become" one is 52, 20 and 21.

Maybe Arduino guys did that to maintain the same "pattern" as the old arduinos, but, why not let it enabled? It only changes a few lines of code (to be exact, 6 lines).

I will create a new commit of the arduino in my github repository if any one wants..